<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" />
        <meta http-equiv="X-UA-Compatible" content="ie=edge" />
        <title>添加用户</title>
        <link rel="icon" th:href="@{/static/favicon.ico}" />
        <link rel="stylesheet" th:href="@{/static/bootstrap/css/bootstrap.min.css}" />
        <link rel="stylesheet" th:href="@{/static/admin/css/main.css}" />
        <link rel="stylesheet" th:href="@{/static/admin/css/user_index.css}" />
        <link rel="stylesheet" type="text/css" th:href="@{/static/webuploader/image-upload/style.css}" />
        <link rel="stylesheet" type="text/css" th:href="@{/static/webuploader/webuploader.css}" />
        <script th:src="@{/static/js/vue.min.js}"></script>
        <script th:src="@{/static/js/axios.min.js}"></script>
        <script th:src="@{/static/js/jquery-3.3.1.min.js}"></script>
        <script th:src="@{/static/bootstrap/js/bootstrap.bundle.js}"></script>
        <script th:src="@{/static/admin/js/config.js}"></script>
        <script th:src="@{/static/admin/js/user_script.js}"></script>
        <!--引入CSS-->
        <style>
            .uploader h1 {
                font-size: 20px;
                margin: 20px 0;
            }
        </style>
    </head>

    <body>
        <!--引入JS-->
        <script type="text/javascript" th:src="@{/static/webuploader/webuploader.js}"></script>

        <main>
            <div class="main uploader">
                <h1>文件上传</h1>
                <div id="wrapper-file">
                    <div class="uploader-container">
                        <div id="filePicker-file">html5版本</div>
                    </div>
                    <div id="log">
                        <strong>console 会影响 md5 时间的计算，所以在测试 md5 速度的时候，把 console 关了</strong>
                    </div>
                </div>

                <br />
                <h1>图片上传</h1>

                <div id="wrapper">
                    <div id="container">
                        <!--头部，相册选择和格式选择-->
                        <div id="uploader">
                            <div class="queueList">
                                <div id="dndArea" class="placeholder">
                                    <div id="filePicker"></div>
                                    <p>或将照片拖到这里，单次最多可选300张</p>
                                </div>
                            </div>
                            <div class="statusBar" style="display: none">
                                <div class="progress">
                                    <span class="text">0%</span>
                                    <span class="percentage"></span>
                                </div>
                                <div class="info"></div>
                                <div class="btns">
                                    <div id="filePicker2"></div>
                                    <div class="uploadBtn">开始上传</div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </main>
        <script>
            (function ($) {
                $(function () {
                    const log = (function () {
                        const dom = $("#log");

                        return function (str) {
                            dom.append("<p>" + str + "</p>");
                        };
                    })();

                    WebUploader.create({
                        pick: "#filePicker-file",
                    }).on("fileQueued", function (file) {
                        const start = +new Date();

                        // 返回的是 promise 对象
                        this.md5File(file, 0, 1 * 1024 * 1024)

                            // 可以用来监听进度
                            .progress(function (percentage) {
                                // console.log('Percentage:', percentage);
                            })

                            // 处理完成后触发
                            .then(function (ret) {
                                // console.log('md5:', ret);

                                const end = +new Date();
                                log("HTML5: md5 " + file.name + " cost " + (end - start) + "ms get value: " + ret);
                            });
                    });
                });
            })(jQuery);

            (function ($) {
                // 当domReady的时候开始初始化
                $(function () {
                    const $wrap = $("#uploader");

                    // 图片容器
                    const $queue = $('<ul class="filelist"></ul>').appendTo($wrap.find(".queueList"));

                    // 状态栏，包括进度和控制按钮
                    const $statusBar = $wrap.find(".statusBar");

                    // 文件总体选择信息。
                    const $info = $statusBar.find(".info");

                    // 上传按钮
                    const $upload = $wrap.find(".uploadBtn");

                    // 没选择文件之前的内容。
                    const $placeHolder = $wrap.find(".placeholder");

                    const $progress = $statusBar.find(".progress").hide();

                    // 添加的文件数量
                    let fileCount = 0;

                    // 添加的文件总大小
                    let fileSize = 0;

                    // 优化retina, 在retina下这个值是2
                    const ratio = window.devicePixelRatio || 1;

                    // 缩略图大小
                    const thumbnailWidth = 110 * ratio;
                    const thumbnailHeight = 110 * ratio;

                    // 可能有pedding, ready, uploading, confirm, done.
                    let state = "pedding";

                    // 所有文件的进度信息，key为file id
                    const percentages = {};
                    // 判断浏览器是否支持图片的base64
                    const isSupportBase64 = (function () {
                        const data = new Image();
                        let support = true;
                        data.onload = data.onerror = function () {
                            if (this.width != 1 || this.height != 1) {
                                support = false;
                            }
                        };
                        data.src = "";
                        return support;
                    })();

                    // 检测是否已经安装flash，检测flash的版本
                    const flashVersion = (function () {
                        let version;

                        try {
                            version = navigator.plugins["Shockwave Flash"];
                            version = version.description;
                        } catch (ex) {
                            try {
                                version = new ActiveXObject("ShockwaveFlash.ShockwaveFlash").GetVariable("$version");
                            } catch (ex2) {
                                version = "0.0";
                            }
                        }
                        version = version.match(/\d+/g);
                        return parseFloat(version[0] + "." + version[1], 10);
                    })();

                    const supportTransition = (function () {
                        let s = document.createElement("p").style;
                        const r = "transition" in s || "WebkitTransition" in s || "MozTransition" in s || "msTransition" in s || "OTransition" in s;
                        s = null;
                        return r;
                    })();

                    // WebUploader实例
                    let uploader;

                    if (!WebUploader.Uploader.support("flash") && WebUploader.browser.ie) {
                        // flash 安装了但是版本过低。
                        if (flashVersion) {
                            (function (container) {
                                window["expressinstallcallback"] = function (state) {
                                    switch (state) {
                                        case "Download.Cancelled":
                                            alert("您取消了更新！");
                                            break;

                                        case "Download.Failed":
                                            alert("安装失败");
                                            break;

                                        default:
                                            alert("安装已成功，请刷新！");
                                            break;
                                    }
                                    delete window["expressinstallcallback"];
                                };

                                const swf = "./expressInstall.swf";
                                // insert flash object
                                let html = '<object type="application/' + 'x-shockwave-flash" data="' + swf + '" ';

                                if (WebUploader.browser.ie) {
                                    html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                                }

                                html += 'width="100%" height="100%" style="outline:0">' + '<param name="movie" value="' + swf + '" />' + '<param name="wmode" value="transparent" />' + '<param name="allowscriptaccess" value="always" />' + "</object>";

                                container.html(html);
                            })($wrap);

                            // 压根就没有安转。
                        } else {
                            $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
                        }

                        return;
                    } else if (!WebUploader.Uploader.support()) {
                        alert("Web Uploader 不支持您的浏览器！");
                        return;
                    }

                    // 实例化
                    uploader = WebUploader.create({
                        pick: {
                            id: "#filePicker",
                            label: "点击选择图片",
                        },
                        formData: {
                            uid: 123,
                        },
                        dnd: "#uploader .queueList",
                        paste: "#uploader",
                        swf: "../../dist/Uploader.swf",
                        chunked: false,
                        chunkSize: 512 * 1024,
                        server: "../../server/fileupload.php",
                        // runtimeOrder: 'flash',

                        // accept: {
                        //     title: 'Images',
                        //     extensions: 'gif,jpg,jpeg,bmp,png',
                        //     mimeTypes: 'image/*'
                        // },

                        // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                        disableGlobalDnd: true,
                        fileNumLimit: 300,
                        fileSizeLimit: 200 * 1024 * 1024, // 200 M
                        fileSingleSizeLimit: 50 * 1024 * 1024, // 50 M
                    });

                    // 拖拽时不接受 js, txt 文件。
                    uploader.on("dndAccept", function (items) {
                        let denied = false;
                        const len = items.length;
                        let i = 0;
                        // 修改js类型
                        const unAllowed = "text/plain;application/javascript ";

                        for (; i < len; i++) {
                            // 如果在列表里面
                            if (~unAllowed.indexOf(items[i].type)) {
                                denied = true;
                                break;
                            }
                        }

                        return !denied;
                    });

                    uploader.on("dialogOpen", function () {
                        console.log("here");
                    });

                    // uploader.on('filesQueued', function() {
                    //     uploader.sort(function( a, b ) {
                    //         if ( a.name < b.name )
                    //           return -1;
                    //         if ( a.name > b.name )
                    //           return 1;
                    //         return 0;
                    //     });
                    // });

                    // 添加“添加文件”的按钮，
                    uploader.addButton({
                        id: "#filePicker2",
                        label: "继续添加",
                    });

                    uploader.on("ready", function () {
                        window.uploader = uploader;
                    });

                    // 当有文件添加进来时执行，负责view的创建
                    function addFile(file) {
                        const $li = $('<li id="' + file.id + '">' + '<p class="title">' + file.name + "</p>" + '<p class="imgWrap"></p>' + '<p class="progress"><span></span></p>' + "</li>");

                        const $btns = $('<div class="file-panel">' + '<span class="cancel">删除</span>' + '<span class="rotateRight">向右旋转</span>' + '<span class="rotateLeft">向左旋转</span></div>').appendTo($li);
                        const $prgress = $li.find("p.progress span");
                        const $wrap = $li.find("p.imgWrap");
                        const $info = $('<p class="error"></p>');

                        const showError = function (code) {
                            switch (code) {
                                case "exceed_size":
                                    text = "文件大小超出";
                                    break;

                                case "interrupt":
                                    text = "上传暂停";
                                    break;

                                default:
                                    text = "上传失败，请重试";
                                    break;
                            }

                            $info.text(text).appendTo($li);
                        };

                        if (file.getStatus() === "invalid") {
                            showError(file.statusText);
                        } else {
                            // @todo lazyload
                            $wrap.text("预览中");
                            uploader.makeThumb(
                                file,
                                function (error, src) {
                                    let img;

                                    if (error) {
                                        $wrap.text("不能预览");
                                        return;
                                    }

                                    if (isSupportBase64) {
                                        img = $('<img src="' + src + '">');
                                        $wrap.empty().append(img);
                                    } else {
                                        $.ajax("../../server/preview.php", {
                                            method: "POST",
                                            data: src,
                                            dataType: "json",
                                        }).done(function (response) {
                                            if (response.result) {
                                                img = $('<img src="' + response.result + '">');
                                                $wrap.empty().append(img);
                                            } else {
                                                $wrap.text("预览出错");
                                            }
                                        });
                                    }
                                },
                                thumbnailWidth,
                                thumbnailHeight
                            );

                            percentages[file.id] = [file.size, 0];
                            file.rotation = 0;
                        }

                        file.on("statuschange", function (cur, prev) {
                            if (prev === "progress") {
                                $prgress.hide().width(0);
                            } else if (prev === "queued") {
                                $li.off("mouseenter mouseleave");
                                $btns.remove();
                            }

                            // 成功
                            if (cur === "error" || cur === "invalid") {
                                console.log(file.statusText);
                                showError(file.statusText);
                                percentages[file.id][1] = 1;
                            } else if (cur === "interrupt") {
                                showError("interrupt");
                            } else if (cur === "queued") {
                                $info.remove();
                                $prgress.css("display", "block");
                                percentages[file.id][1] = 0;
                            } else if (cur === "progress") {
                                $info.remove();
                                $prgress.css("display", "block");
                            } else if (cur === "complete") {
                                $prgress.hide().width(0);
                                $li.append('<span class="success"></span>');
                            }

                            $li.removeClass("state-" + prev).addClass("state-" + cur);
                        });

                        $li.on("mouseenter", function () {
                            $btns.stop().animate({ height: 30 });
                        });

                        $li.on("mouseleave", function () {
                            $btns.stop().animate({ height: 0 });
                        });

                        $btns.on("click", "span", function () {
                            const index = $(this).index();
                            let deg;

                            switch (index) {
                                case 0:
                                    uploader.removeFile(file);
                                    return;

                                case 1:
                                    file.rotation += 90;
                                    break;

                                case 2:
                                    file.rotation -= 90;
                                    break;
                            }

                            if (supportTransition) {
                                deg = "rotate(" + file.rotation + "deg)";
                                $wrap.css({
                                    "-webkit-transform": deg,
                                    "-mos-transform": deg,
                                    "-o-transform": deg,
                                    transform: deg,
                                });
                            } else {
                                $wrap.css("filter", "progid:DXImageTransform.Microsoft.BasicImage(rotation=" + (~~(((file.rotation / 90) % 4) + 4) % 4) + ")");
                                // use jquery animate to rotation
                                // $({
                                //     rotation: rotation
                                // }).animate({
                                //     rotation: file.rotation
                                // }, {
                                //     easing: 'linear',
                                //     step: function( now ) {
                                //         now = now * Math.PI / 180;

                                //         var cos = Math.cos( now ),
                                //             sin = Math.sin( now );

                                //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                                //     }
                                // });
                            }
                        });

                        $li.appendTo($queue);
                    }

                    // 负责view的销毁
                    function removeFile(file) {
                        const $li = $("#" + file.id);

                        delete percentages[file.id];
                        updateTotalProgress();
                        $li.off().find(".file-panel").off().end().remove();
                    }

                    function updateTotalProgress() {
                        let loaded = 0;
                        let total = 0;
                        const spans = $progress.children();
                        let percent;

                        $.each(percentages, function (k, v) {
                            total += v[0];
                            loaded += v[0] * v[1];
                        });

                        percent = total ? loaded / total : 0;

                        spans.eq(0).text(Math.round(percent * 100) + "%");
                        spans.eq(1).css("width", Math.round(percent * 100) + "%");
                        updateStatus();
                    }

                    function updateStatus() {
                        let text = "";
                        let stats;

                        if (state === "ready") {
                            text = "选中" + fileCount + "张图片，共" + WebUploader.formatSize(fileSize) + "。";
                        } else if (state === "confirm") {
                            stats = uploader.getStats();
                            if (stats.uploadFailNum) {
                                text = "已成功上传" + stats.successNum + "张照片至XX相册，" + stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>';
                            }
                        } else {
                            stats = uploader.getStats();
                            text = "共" + fileCount + "张（" + WebUploader.formatSize(fileSize) + "），已上传" + stats.successNum + "张";

                            if (stats.uploadFailNum) {
                                text += "，失败" + stats.uploadFailNum + "张";
                            }
                        }

                        $info.html(text);
                    }

                    function setState(val) {
                        let file;
                        let stats;

                        if (val === state) {
                            return;
                        }

                        $upload.removeClass("state-" + state);
                        $upload.addClass("state-" + val);
                        state = val;

                        switch (state) {
                            case "pedding":
                                $placeHolder.removeClass("element-invisible");
                                $queue.hide();
                                $statusBar.addClass("element-invisible");
                                uploader.refresh();
                                break;

                            case "ready":
                                $placeHolder.addClass("element-invisible");
                                $("#filePicker2").removeClass("element-invisible");
                                $queue.show();
                                $statusBar.removeClass("element-invisible");
                                uploader.refresh();
                                break;

                            case "uploading":
                                $("#filePicker2").addClass("element-invisible");
                                $progress.show();
                                $upload.text("暂停上传");
                                break;

                            case "paused":
                                $progress.show();
                                $upload.text("继续上传");
                                break;

                            case "confirm":
                                $progress.hide();
                                $("#filePicker2").removeClass("element-invisible");
                                $upload.text("开始上传");

                                stats = uploader.getStats();
                                if (stats.successNum && !stats.uploadFailNum) {
                                    setState("finish");
                                    return;
                                }
                                break;
                            case "finish":
                                stats = uploader.getStats();
                                if (stats.successNum) {
                                    alert("上传成功");
                                } else {
                                    // 没有成功的图片，重设
                                    state = "done";
                                    location.reload();
                                }
                                break;
                        }

                        updateStatus();
                    }

                    uploader.onUploadProgress = function (file, percentage) {
                        const $li = $("#" + file.id);
                        const $percent = $li.find(".progress span");

                        $percent.css("width", percentage * 100 + "%");
                        percentages[file.id][1] = percentage;
                        updateTotalProgress();
                    };

                    uploader.onFileQueued = function (file) {
                        fileCount++;
                        fileSize += file.size;

                        if (fileCount === 1) {
                            $placeHolder.addClass("element-invisible");
                            $statusBar.show();
                        }

                        addFile(file);
                        setState("ready");
                        updateTotalProgress();
                    };

                    uploader.onFileDequeued = function (file) {
                        fileCount--;
                        fileSize -= file.size;

                        if (!fileCount) {
                            setState("pedding");
                        }

                        removeFile(file);
                        updateTotalProgress();
                    };

                    uploader.on("all", function (type) {
                        let stats;
                        switch (type) {
                            case "uploadFinished":
                                setState("confirm");
                                break;

                            case "startUpload":
                                setState("uploading");
                                break;

                            case "stopUpload":
                                setState("paused");
                                break;
                        }
                    });

                    uploader.onError = function (code) {
                        alert("Eroor: " + code);
                    };

                    $upload.on("click", function () {
                        if ($(this).hasClass("disabled")) {
                            return false;
                        }

                        if (state === "ready") {
                            uploader.upload();
                        } else if (state === "paused") {
                            uploader.upload();
                        } else if (state === "uploading") {
                            uploader.stop();
                        }
                    });

                    $info.on("click", ".retry", function () {
                        uploader.retry();
                    });

                    $info.on("click", ".ignore", function () {
                        alert("todo");
                    });

                    $upload.addClass("state-" + state);
                    updateTotalProgress();
                });
            })(jQuery);
        </script>
    </body>
</html>
